Locomotive draft appliance.



VON G. FERGUSON.

LOCOMOTIVE DRAFT APPLIANCE.

APPLICATION FILED MAY I2. 1919.

1 ,326,4:86. Patented Dec. 30, 1919.

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APPLICATION FILED MAY 12, l9l9. V

Patented 'Dec. 30, 1919.

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VON G. FERGUSON, OF FAIRBURY, NEBRASKA.

LUCOMOTIV E DRAFT APPLIANCE.

Application filed May 12, 1919.

To all whom it may concern:

Be it known that l, VON G. FERGUSON, a citizen of the United States, residing at Fairbury, in the county of Jefferson and State of Nebraska, have invented certain new and useful Improvements in Locomotive Draft Appliances, of which the following is a specification.

The invention has relation to means for creating a forced draft in locomotives and to prevent the emission of sparks, the purpose being to simplify the construction and to reduce the number of parts generally required in a smoke chamber at the end of the locomotive with the result that the work of the fireman is materially lessened and the construction cheapened without detracting from the efficiency and durability of the locomotive.

The drawings illustrate a preferred embodiment of the invention. However, it is to be understood that in adapting the same to meet different conditions, various changes in the form, proportion, and minor details of construction may be resorted to without departing from the nature of the invention as claimed hereinafter.

In the drawings hereto attached,

Figure 1 is a sectional view of the end of a locomotive taken through the smoke chamber.

Fig. 2 is a sectional detail of the attachment on the line 2-:2 of Fig. 1.

Fig. 3 is a horizontal section on the line 33 of Fig. 1.

Fig. 4.- is a vertical section on the line 4.'% of Fig. 1.

Fig. 5 is a horizontal section on the line 55 of Fig. 1.

Fig. 6 is a detail perspective View of the attachment with the outer casing removed.

Corresponding and like parts are referred to in the following description and inclicated in the several views of the drawings by like reference characters.

The locomotive boiler designated at A in Fig. 1 maybe of ordinary construction and is provided at one end with the usual smoke chamber B with which connects the smoke stack G and an exhaust nozzle D. These parts maybe of any well known construction in arrangement and are illustrated simply to demonstrate the application of the invention.

A stand pipe 1 is located in the smoke chamber B and is connected at its lower end Specification of Letters Patent.

Patented Dec. 30, 1919.

Serial No. 296,448.

with the exhaust nozzle D. The stand pipe 1 is in line with the smoke stack C and is centered by means of a. ringZ which is connected with the smoke stack or a part of the locomotive boiler in any convenient way. A ring 2 is secured centrally within the ring 2 and receives the upper end of the stand pipe 1. Vertically disposed flanges 3 are located at the sides of the stand pipe 1 and each is provided with a plurality of openings at, whereby provision is had for vertical adjustment of a ring 5 which performs the function of a damper since its purpose is to control the draft according to its relative position on the stand pipe and its distance from the lower or receiving end of the smoke stack C. The ring 5 has depending extensions 6 which lie against the flanges 3 to which they are secured by suitable fastenings 7 which are adapted to pass through selected openings 4.

A casing 8 is fitted about the stand pipe 1 and is closed at its lower end and is open at its upper end which leads into the smoke stack C. The casing 8 is of. sectional formation and its bottomand sides are perforated or meshed to provide for a ready passage of the products of combustion without providing an escape for sparks and incandescent particles. The casing 8 may be constructed of foraminous sheet metal or wire fabric as found most desirable, but the openings or meshes must be of a size to prevent the passage of sparks without interfering with the escape of the products of combustion such as smoke and gases. A door 9 closes an opening in the front of the casing 8 and provides for ready access to the interior of the casing for any purpose, either for cleaning or for adjustment of the damper 5. A band or section 10 connects the upper end of the ring 2 with the smoke stack.

A pipe 11 connects with the lower portion of the casing and leads from a tank, not shown, containing compressed air. When starting a fire in the locomotive, compressed smoke chamber, a stand pipe connected With the exhaust nozzle and having its upper end disposed to discharge into the smoke stack, a damper ring adjustable vertically on the stand pipe and a casing inclosing the stand pipe and having openings in its sides for the passage of products of combustion.

2. In a locomotive boiler provided with an end smoke chamber, exhaust nozzle and smoke stack in cooperative relation with the smoke chamber, a stand pipe connected with the exhaust nozzle and having its upper end disposed to discharge into the smoke stack, said stand pipe having vertical flanges at its sides, a damper ring adjustable vertically on the stand pipe and adapted to be secured to the said vertical flanges in an adjusted position and a casing inclosing the stand pipe and damper and in communication at its upper end with the smoke stack.

3. In a locomotive boiler provided with an end smoke chamber, exhaust nozzle and smoke stack 1n cooperative relation with the smoke chamber, a stand pipe connected with the exhaust nozzle and having its upper end disposed to discharge into the smoke stack, said stand pipe having vertical flanges at its sides, a damper ring adjustable vertically on the stand pipe and adapted to be secured to the said vertical flanges in an adjusted position and a casing inclosing the stand pipe and damper and in communica tion at its upper end with the smoke stack, said casing having a door controlled opening in its front to admit of ready access to the interior thereof for any purpose.

In testimony whereof I my signature in presence of two witnesses.

VON G. FERGUSON. Witnesses GHAs. D. KING, ALBERT DONALDSON. 

